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<blocks app="Snap! 4.0, http://snap.berkeley.edu" version="1"><block-definition s="ist Längengrad: %'Längengrad' Breitengrad: %'Breitengrad' innerhalb einer Fläche der Farbe von %'SpriteName' ?" type="predicate" category="sensing"><header></header><code></code><inputs><input type="%n"></input><input type="%n"></input><input type="%txt">Sprite</input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>spriteName</l><l>lat</l><l>lon</l></list><l>var layers = window.penShapes, sprites = world.children[0].sprites.asArray(), sprite;
for (j = 0; j < sprites.length; j++) {
 if (sprites[j].name == spriteName) {
 sprite = sprites[j];
 break;
 }
}
if (!sprite) {
 return false;
}
var matches = leafletPip.pointInLayer([lon, lat], layers);

for (var j = 0; j < matches.length; j++) {
 if (matches[j].options.color == sprite.color) {
 return true;
 }
}

return false;</l></block><list><block var="SpriteName"/><block var="Breitengrad"/><block var="Längengrad"/></list></block></block></script></block-definition><block-definition s="ist eine Straße nahe Längengrad: %'lon' Breitengrad: %'lat'" type="predicate" category="sensing"><header></header><code></code><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="doReport"><block s="reportGreaterThan"><block s="reportListLength"><block s="overpassQuery"><block s="reportJoinWords"><list><l>way(around:7,</l><block var="lat"/><l>,</l><block var="lon"/><l>)[highway];out;</l></list></block></block></block><l>0</l></block></block></script></block-definition><block-definition s="ist ein Gebäude nahe Längengrad: %'lon' Breitengrad: %'lat'" type="predicate" category="sensing"><header></header><code></code><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="doReport"><block s="reportGreaterThan"><block s="reportListLength"><block s="overpassQuery"><block s="reportJoinWords"><list><l>way(around:5,</l><block var="lat"/><l>,</l><block var="lon"/><l>)[building];out;</l></list></block></block></block><l>0</l></block></block></script></block-definition><block-definition s="Größe des von mit %'SpriteName' s Farbe markierten Feldes" type="reporter" category="sensing"><header></header><code></code><inputs><input type="%txt">Sprite</input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportJSFunction"><list><l>spriteName</l></list><l>var size = 0, layers = window.penShapes.getLayers(), sprites = world.children[0].sprites.asArray(), sprite;
for (j = 0; j < sprites.length; j++) {
 if (sprites[j].name == spriteName) {
 sprite = sprites[j];
 break;
 }
}
if (!sprite) {
 return 0;
}
for (j = 0; j < layers.length; j++) {
 if (layers[j].options.color == sprite.color) {
 size += LGeo.area(layers[j]);
 }
}
return size;</l></block><list><block var="SpriteName"/></list></block></block></script></block-definition></blocks>
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